{"id":105,"date":"2015-11-22T12:19:12","date_gmt":"2015-11-22T12:19:12","guid":{"rendered":"http:\/\/www.noisemap.ltd.uk\/wpress\/?page_id=105"},"modified":"2018-02-21T23:27:49","modified_gmt":"2018-02-21T23:27:49","slug":"capacity","status":"publish","type":"page","link":"http:\/\/www.noisemap.ltd.uk\/wpress\/products\/capacity\/","title":{"rendered":"Capacity"},"content":{"rendered":"<p class=\"heading1\"><strong>NoiseMap five\u00a0&#8211; Model Capacity<\/strong><\/p>\n<p class=\"heading1\">The limits on model size are essentially the\u00a0practical ones of computer memory and processing speed &#8211; although the data input and processing techniques used by NoiseMap are designed to work efficiently with very large models.\u00a0 NoiseMap five can use multi-core processors and distributed processing which make the maximum\u00a0use of available processing capacity.<\/p>\n<p class=\"bodytext\">The model size is normally\u00a0limited to a geographical area of 1024 km square, although this can be increased simply by using a larger tile size.\u00a0 There are no limits on the numbers of any individual object types or the number of scenarios that can be managed.<\/p>\n<p class=\"bodytext\">The previous limit of 100 category types and 100 category combinations has been increased to 500 of each from version 5.2.6.<\/p>\n<p><strong>Model co-ordinates<br \/>\n<\/strong>NoiseMap uses a rectangular Cartesian grid for the noise model. Each region of the globe uses its own &#8216;projection&#8217; of the spheroidal surface of the earth onto\u00a0the flat surface of the map.\u00a0 You can use any appropriate projection for your region. The UK Ordnance Survey uses a projection that ensures that the whole of the United Kingdom is mapped with positive co-ordinates, and given the size of the UK,\u00a0the whole\u00a0region can be contained by NoiseMap with no changes.<\/p>\n<p>However, for other regions, you\u00a0should choose a grid origin such that the furthest extent\u00a0of the\u00a0model is not more than 1024 km\u00a0 easterly or northerly from the chosen origin. You select the origin when you first create the database.<\/p>\n<p>See this link for information on the <a href=\"http:\/\/www.noisemap.ltd.uk\/wpress\/products\/calculation-speed\/\">Calculation\u00a0speed of NoiseMap<\/a>.<\/p>\n<p class=\"bodytext\">A full technical specification for NoiseMap five\u00a0is available as a pdf file on the link below:<\/p>\n<p class=\"bodytext\"><a href=\"http:\/\/www.noisemap.ltd.uk\/wpress\/wp-content\/uploads\/2017\/01\/NoiseMap-five-5.2-Technical-Specification.pdf\">NoiseMap five Technical Specification<\/a><\/p>\n<p class=\"heading1\"><strong>Enterprise Edition &#8211; Model Capacity<\/strong><\/p>\n<p class=\"bodytext\">16,000 each of road, rail and haul road segments, noise barriers, fixed noise sources, ground contour points and receiver points. The model size is however unlimited in terms of geographical area covered.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>NoiseMap five\u00a0&#8211; Model Capacity The limits on model size are essentially the\u00a0practical ones of computer memory and processing speed &#8211; although the data input and processing techniques used by NoiseMap are designed to work efficiently with very large models.\u00a0 NoiseMap five can use multi-core processors and distributed processing which make the maximum\u00a0use of available processing &hellip; <a href=\"http:\/\/www.noisemap.ltd.uk\/wpress\/products\/capacity\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Capacity<\/span> <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":20,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"http:\/\/www.noisemap.ltd.uk\/wpress\/wp-json\/wp\/v2\/pages\/105"}],"collection":[{"href":"http:\/\/www.noisemap.ltd.uk\/wpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"http:\/\/www.noisemap.ltd.uk\/wpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"http:\/\/www.noisemap.ltd.uk\/wpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.noisemap.ltd.uk\/wpress\/wp-json\/wp\/v2\/comments?post=105"}],"version-history":[{"count":8,"href":"http:\/\/www.noisemap.ltd.uk\/wpress\/wp-json\/wp\/v2\/pages\/105\/revisions"}],"predecessor-version":[{"id":823,"href":"http:\/\/www.noisemap.ltd.uk\/wpress\/wp-json\/wp\/v2\/pages\/105\/revisions\/823"}],"up":[{"embeddable":true,"href":"http:\/\/www.noisemap.ltd.uk\/wpress\/wp-json\/wp\/v2\/pages\/20"}],"wp:attachment":[{"href":"http:\/\/www.noisemap.ltd.uk\/wpress\/wp-json\/wp\/v2\/media?parent=105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}